Speaking about the Tiger Woods I had last night only, but I was real impressed with the flatness of bone, the amount of bone and foot size and what appears to be lots of flex in his joints. Something I was afraid of as well, but at 18 hrs old I have seen some pretty messed up with bowed legs and bowed from the pasterns to hoof and coarse jointed, but I was real pleased with this aspect of the calf I had. Just off the first 18 hours I would use Tiger Woods again. Should have another in the next day or so.